Tcp Maximum-Bandwidth-Mbps - Cisco AJ732A - MDS 9134 Fabric Switch Command Reference Manual
Cisco mds 9000 family command reference guide - release 4.x (ol-18089-01, february 2009)
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tcp maximum-bandwidth-mbps
S e n d d o c u m e n t a t i o n c o m m e n t s t o m d s f e e d b a c k - d o c @ c i s c o . c o m
tcp maximum-bandwidth-mbps
To manage the TCP window size in Mbps, use the tcp maximum-bandwidth-mbps command. Use the
no form of this command to disable this feature or revert to its factory defaults.
Syntax Description
bandwidth
min-available-bandwidth-mbps
threshold
round-trip-time-ms milliseconds Configures the estimated round trip time across the IP network to
round-trip-time-us microeconds
Defaults
Enabled.
The FCIP defaults are max-bandwidth = 1G, min-available-bandwidth = 500 Mbps, and
round-trip-time =1 ms.
The iSCSI defaults are max-bandwidth = 1G, min-available-bandwidth = 70 Kbps, and
round-trip-time =1 ms.
Command Modes
FCIP profile configuration submode.
Command History
Release
1.1(1)
Usage Guidelines
The maximum-bandwidth option and the round-trip-time option together determine the window size.
The minimum-available-bandwidth option and the round-trip-time option together determine the
threshold below which TCP aggressively increases its size. After it reaches the threshold the software
uses standard TCP rules to reach the maximum available bandwidth.
Examples
The following example configures a FCIP profile:
switch# config terminal
switch(config)# fcip profile 5
switch(config-profile)#
Cisco MDS 9000 Family Command Reference
23-30
tcp max-bandwidth-mbps bandwidth min-available-bandwidth-mbps threshold
{round-trip-time-ms milliseconds | round-trip-time-us microseconds}
no tcp max-bandwidth-mbps bandwidth min-available-bandwidth-mbps threshold
{round-trip-time-ms milliseconds | round-trip-time-us microseconds}
Modification
This command was introduced.
Specifies the Mbps bandwidth. The range is 1 to 1000.
Configures the minimum slow start threshold.
Specifies the Mbps threshold. The range is 1 to 1000.
reach the FCIP peer end point in milliseconds. The range is 0 to
300.
Configures the estimated round trip time across the IP network to
reach the FCIP peer end point in microseconds. The range is 0 to
300000.
Chapter 23
T Commands
OL-18089-01, Cisco MDS NX-OS Release 4.x
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